SONOFF AirGuard CO2 SAWF-08P – Matter Over Wi-Fi Air Quality Monitor

The SONOFF AirGuard CO₂ (SAWF-08P) is a Matter over Wi-Fi-enabled air quality monitor with NDIR-based CO₂ sensing technology, capable of measuring and displaying real-time carbon dioxide levels, temperature, and humidity. The professional-grade NDIR sensor updates every 5 seconds, quickly responding to changes in indoor air quality.

The device alerts users to high CO₂ levels through sound, light, and app notifications. It also provides personalized tips to improve air quality, using current outdoor data as a reference. With up to 1 year of historical data storage and export functionality, the AirGuard CO₂ supports long-term analysis and helps users develop energy-efficient ventilation habits.

Thanks to Matter support, the AirGuard CO₂ can be easily integrated with Apple Home, Google Home, Amazon Alexa, and SmartThings ecosystems. The measured values can also be used in smart automations – such as activating ventilation or fans when CO₂ is high, or adjusting HVAC operation based on comfort thresholds.

About the SONOFF Brand

SONOFF (ITEAD) is a key player in the DIY smart home market. Their range of products – including relays, switches, sensors, and gateways – offers great value, easy setup, and wide compatibility with platforms such as eWeLink, Apple Home, Google Home, Amazon Alexa, and SmartThings.

Key Product Features

• NDIR accuracy: professional-grade CO₂ measurement with ±(50 ppm + 5%) accuracy and 5-second refresh rate.
• Three-in-one monitoring: CO₂, temperature, and humidity displayed locally and via the app.
• Alerts and tips: sound/light alarms, push notifications, and personalized indoor air quality suggestions.
• 1-year history: stores and displays up to 365 days of data, with export functionality for analysis.
• Matter integration: easy pairing with Apple Home, Google Home, Alexa, and SmartThings (Matter hub required).
• Do Not Disturb mode: temporarily mute alerts and notifications.

Smart Home Protocols & Platform Compatibility

• Protocol: Matter over Wi-Fi (2.4 GHz, IEEE 802.11 b/g/n)
• Ecosystems: Apple Home, Google Home, Amazon Alexa, Samsung SmartThings (requires Matter hub)
• Automation: trigger scenes based on CO₂ / temperature / humidity thresholds (e.g., ventilation, fan, HVAC control)
• Notifications: push alerts via app, sound/light signals on device, optional mute settings

Smart Features

• Real-time monitoring: CO₂ updates every 5 seconds; continuous temperature and humidity tracking
• Air quality recommendations: personalized advice based on indoor readings and outdoor AQI
• History & export: view 365 days of data in charts, with support for exporting logs
• Voice control: compatible with Siri / Google Assistant / Alexa via supported platforms

Technical Specifications

• Product / Model: SONOFF AirGuard CO₂ / SAWF-08P
• Sensor technology: NDIR CO₂ sensor (±50 ppm + 5%); refresh rate: 5 s
• Measured parameters: CO₂, temperature, humidity
• MCU: ESP32-D0WDR2-V3
• Power / connector: USB-C (Type-C)
• Wireless: Wi-Fi 2.4 GHz (IEEE 802.11 b/g/n); Matter-compatible
• Material: PC+ABS housing
• Dimensions / Weight: 70 × 103 × 26 mm; 101 g
• Operating environment: −10 to +50 °C; 5–95% RH (non-condensing)
• Certifications: CE / FCC / RoHS
• FCC ID: 2APN5-SAWF08P
• Box contents: AirGuard CO₂ unit, USB-C cable, documentation

At the link below, you can access our sales support materials for individual products.
Available documents are organized by manufacturer in folders on Google Drive.

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